Surveys and statistical programs – Longitudinal Immigration Database – IMDB, immigration question.#Immigration #question

Longitudinal Immigration Database IMDB

The Longitudinal Immigration Database provides detailed and reliable information on the performance and impact of immigration programs

Data release – November 27, 2017


The Longitudinal Immigration Database IMDB combines linked administrative immigration and tax data files It is a comprehensive source of data on the socio economic outcomes of the immigrant taxfiler population in Canada

Reference period: Calendar year

Collection period: March April tax data all year permanent and non permanent resident data


  • Education training and skills
  • Ethnic diversity and immigration
  • Labour market and income
  • Mobility and migration
  • Population and demography

Data sources and methodology

Target population

A person is included in the Longitudinal Immigration Database if he or she obtained permanent resident status since 1980 and filed at least one tax return since 1982

Instrument design

This methodology does not apply to this statistical program


This survey is a census with a longitudinal design

Data are collected for all units of the target population therefore no sampling is done

Data sources

Data are extracted from administrative files

The IMDB brings together immigration information from IRCC taxation data from the Canada Revenue Agency and the date of death from Statistics Canada s Amalgamated Mortality Database AMDB

Error detection

The immigration micro data go through a series of edits prior to linkage to ensure that there are no duplicate records and that no data mandatory for matching is missing Logical edits range edits and content edits are used at this stage to improve the data quality of the files After the linkage extreme values and missing information necessary for derivations are identified SAS software is used for these processes


Imputation was undertaken for immigration education variables due to higher rates of item non response for admission years 2011 to 2015


This methodology type does not apply to this statistical program

Quality evaluation

A series of diagnostic tables is produced after each update to evaluate the quality of the match These provide historical trend comparisons of counts with previous years by key characteristics Coverage rates are produced to assess the success of the matching process

Disclosure control

Statistics Canada is prohibited by law from releasing any data which would divulge information obtained under the Statistics Act that relates to any identifiable person business or organization without the prior knowledge or the consent in writing of that person business or organization Various confidentiality rules are applied to all data that are released or published to prevent the publication or disclosure of any information deemed confidential As necessary data are suppressed or rounded to prevent direct or residual disclosure of identifiable data

Revisions and seasonal adjustment

This methodology type does not apply to this statistical program

Data accuracy

The IMDB combines an administrative Immigrant Landing File ILF and a Non Permanent Resident File NRF with the T1 Family File T1FF through exact matching record linkage techniques The overall linkage rate for the ILF T1FF is approximately 97

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